Top Definition
Buttsmut is anal porn.
I have a fetish for buttsmut.
by Theory's Apprentice July 02, 2006
but porn. The insertion of a cock into the anus over and over again until the world melts away in a wave of pleasure.
I enjoy butt smut at everytime of day. I love buttsmut when i wake up, I love butt smut when i get back from work, and i especially love butt smut at night.
by The Poopshoot Pirate June 03, 2003
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